What does the name protozoa mean? first microbe
first animal
first organism
first cell

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q#20

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

What noticeable trend from this graph might be used to make a conclusion?

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing